Update requirements.txt

requirements.txt

@@ -1,11 +1,6 @@
-streamlit>=1.16.0
-requests>=2.25.0
-openai
-tiktoken
-pydantic==1.10.21
-chromadb==0.3.25
-langchain==0.0.148
-langgraph
-typing_extensions>=4.0.0
-pydantic<2.0.0
-
+streamlit==1.24.1
+requests==2.31.0
+langchain==0.0.200
+langgraph==0.0.5
+python-dotenv==1.0.0
+typing-extensions==4.10.0